Re: SQL sentence to insert where updated rows is zero...

Le jeudi 31 janvier 2013 à 17:25 +0100, Glus Xof a écrit :

> It's just to ask you if there is a single SQL sentence to INSERT
> values in case of UPDATE WHERE returns 0 rows updated. I mean, If I
> write something like,
>
> # update my_table set column1='value' where column2='key_value';
>
> And system replies me with one "UPDATE 0" because there is no row at
> column2 with value 'key_value'... is it possible to say here: in this
> case, create one new row with 'value' - 'key_value'...?  like
>
> # insert into my_table (column1, column2) values ('value', 'key_value');
>

You might want to have a look at this page :

http://www.depesz.com/2012/06/10/why-is-upsert-so-complicated/



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Salutations, Vincent Veyron
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